Recording-speedometer.



R. D. WHITE.

RECORDING SPEEDOMETER.

APPLICATION FILED 11017.12, 1910.

Patented Oct. 17, 1911. 1

3 SHEETSSHEET 1.

6 O L l 1 LQitmwwo R. D. WHITE.

RECORDING SPEEDOMETER.

APPLICATION FILED NOV.12,1910.

1,006,326, Patented Oct. 17,1911.

3 SHEETSSEEET 2.

73%M4/W u 4 1 I I Patented Oct. 17, 1911.

3 SHEETS-SHEET 3.

RICHARD DRACE WHITE, THE UNITED STATES NAVY.

RECORDING-SPEEDOMETER.

Specification of Letters Patent. Patented Oct; 17 1911,

Application filed November 12, 1910. Serial No. 552,106.

To all whom it may concern:

Be it known that. I, RICHARD DRACE \Vnrrn, lieutenant, United States Navy,

and a citizen of the United States, staand I do hereby declare the following to be a full, clear, and exact description of the inventiomsuch as will enable others skilled in the art to which it appcrtains to make and use'the same.

liiivprcsent invention relates to improve ments in ap iaratus for measuring and recording the speed at which objects move; for example. the speed in revolutions per minute of a moving engine; the speed over the ground in miles per hour of an automobile; the strokes per minute of a pump, etc. This is accomplished by measuring the speed in (piestion for a certaininterval of time and referring this increment to a scale dependent on the prearranged interval of tune used, which scale will read the speed according to the slaiulard desired.

Heirrcncc is had to the. accon'iganying drawings in which the same parts are indicated by the same letters and numerals throughout the several. views.

Figure 1 is a diagram showing the com plete apparatus except the tape feed Figs. 2, 3 and 4: are diagrams showing the various positions of the apparatus wheuin operation; Fig. 5 shows the tape feed; Fig. 6 is a detail view showing the engagement of the tri jiping lever with the stop wheel; Fig. 7 a detail view showingthe cam engagement of the stop mechanism: Fig. 8 shows (me form of printing wheel; and Fig. 9 shows a modified form of printing wheel.

A represents clock work mounted in a suitable casing X driven by a main spring in the usual way and controlled by the escapement A.

B represents the arrangement control ing the striking bar which actuates the stop and the printing mechanism.

C represents the printing mechanism, D represents the tape feed, and E represents the driving wheel, which is connected to or rotated by the shaft whose velocity is to be measured. The parts A and A are generally similar to the hand Operating mechanism of a'clock and comprises a main spring 1, a gear wheel 2, a ratchet wheel 4 mounted m eeh anism on the shaft 8, a pawl to engage the ratchet wheel, and a handle 6 to wind up the spring.

.The gear 2 meshes in the pinion 7 on the same shaft with the gear 8, which in turn meshes with the pinionll on the same shaft with the'gear 10, which latter meshes in the pinion 11 on the same shaft 13 with the gear 12 and the tripping wheel 16. The speed of the train of gearing is regulated by the escapement A, pinion l t, escapement wheel 15 and the other parts which are well known in clock makers art.

The tripping wheel 16 has plane surfaces 17 and 17 oppositely disposed and preferably extending through the-larger portion of the circumference of the wheel. Between these plane portions are toothed segments 18 and 18. I have shown two plane portions. This number may be varied at will, but must always be of like angular dimension, and be separated by three notches.

The tripping lever F is pivoted at 19 and has a hook 520 at one end adapted to engage the notches 18 and 18 of the tripping wheel 16. The other end of the lever is bifurcated as at 21 and 21 and is provided with pro jecting pins and 22*, adapted to engage with the pin 23 projecting from the wheel 2st, which wheel is mounted on a shaft 25 carrying the pinion 26, engaging in the gear 27 which rotates with the pinion 28, said pinion being driven by the gear 29 and spring 30. This gear 29 is mounted on the same shaft 32 with the ratchet wheel 31 and the ratchet wheel is held against turning by means of the pawl 33. This spring 30 is wound up by a handle such as that shown. at 6, in the time mechanism A.

The parts 2i to 33 comprising the striking mechanism, are generally similar to the striking mechanism of a clock. The link 34 is pivoted to the wheel 24 and is also pivoted to the striking arm 35, which is pivoted at 36, and carries at its opposite end a hammer 37. This hammer 37 is adapted to strike the cap 38 on the plunger 39, which is normally held in the initial position by the spring 40, which plunger 39 has pivoted to the lower end thereof an arm. ell normally held in engagementwith the ratchet 52, by means of the spring 41*.

E represents the drive wheel, preferably a friction wheel, journaled on the shaft (2, which is connected to the rotating member whose speed is to be noted in any convenient way. Journaled on the shaft 6 is the arm or bracket 42, carryin the wheel 43, preferably a friction wheel, w iich is constantly driven by the wired F. The other end of this arm l2 provided with a catch normally pressed into engagement nah the. hook to by means of the spring 44. This hook l6 is at the end of the bent arm .7, pivoted at: 4-8, an d provided with a tooth 49 engaging in the toothed wheel 50, which is mounted on the shaft 51, to which rigidly attached the ratchet wheel The. arm 53 is pivoted at Sat and is provided with a tooth 55 engaging said wheel 50, and also with a catch 57 engaging in the notch of the heart-shaped cam mounted on the shaft (30, to which shaft is rigidly attached a friction gear (31 and the printin wheel (32. The bell crank 53 is pivoted at (El and one of its arms (35 carries a teeth 66, adapted to engage in the. toothed wheel 50, while the other arm of said hell crank is provided with a hammer (57 adapted to strike the tape 8 and press the. same against the carbon 76, and. the printing wheel 62, which carbon passes over the spools 77 and 78, and over the friction disk 75 driven. by the friction disk 74- on the same shaft with the ratchet wheel 73 driven by the wheel 73, driven by the arm 71, pivoted to the bar 70 and held in engagement with said wheel 73 by the spring 72. This arm 70 pivoted to the hell crank (33 and the said hell crank pressed upon by the spring on tending to throw the tooth (36 into engage ment with the wheel 50.

The face of the printing wheel 62 is graduated with numerals and other graduations, as shown in Fig. 8; or donhle numerals indicating the one to he operated by the printing mechanism and the other to he read may be used, as shown in Fig. l).

The tape fed to the :mparatus in an convenient way, as for instai'iee, by the arrangcmcnt shown in Fig. 5, where 81) represents the spool carrying the tape (38, which tape passes over the guide rollers 88 and down between the friction rollers HT and So. The friction roller 86 is rotated by means ol the arni S1, pivoted to the rod 80 and held in engagement with the ratchet wheel S l v the spring 82, the said rod passing through a snitahle guide if), shown in llollwl line in Fig. 5. This rod is pivoted to the bell crank 63. as shown in Figs. l and 5. w-l'icel. 83 on the sammslmll. with the gear 84 meshes with the pinion s5, driving the friction wheel 88.

The operation of the device is as follows: Assuming the part. to be. in the position shown in l ig. 1, and the. springs and ill) being wound up rd he. wheel l) living connected to the shaft. whose rotation is to be measured, the train ot gearing A will be operated and the. tripping wheel ll} driven at a uniform speed. l'he spring ll) will tend to :mcrale the train of gearing ii, but the i li i: Hill-lull.-

pin 22 on the tripping lever F will engage the pin 23 on the wheel 24- whcnever the catch 20 is clear of any of the notches 0n the tripping wheel 1.6. This will occur when the catch 20 bears on either segment 17 or 17 of the wheel 16, or is wedged on to the top of the teeth 18 or 18, as shown in Fi 1. As this wheel 16 rotates, the said catch 20 will snap into the last one of thenotches 18 or 1S under the action of the spring This will clear the pin 23 from en agement with the. pin 22 and the wheel 24L will rapidly revolve until the pin 23 engages the opposite pin 22 on the opposite arm 21 of the tripping lever 1 The. train of gearing B will then come to a stop again, and during this movement the hammer 37 will have swung down striking the cap 38 on. the plunger 39, and partially rotating the ratchet wheel 52, the parts then assuming the position shown in Fig. Incident to this movement of the hammer 37 and wheel 52, the tooth 429 on the arm 4:7, will snap into one of the notches on the wheel permitting the catch 15 to swing downward, when the spring 44: will force the friction wheel 4-3 into engagement with the friction wheel 51 and will rotate the printing roller (32, or the combined printing roller and visual scale 62. The same movement of the wheel 50 will press the tooth 55 on the arm 53 out of engagement with thenotch in the wheel 50, and will press the catch 57 at the enclot said arm 53, out of engagement with the notch 58 in the heart-shaped cam 55), thus permitting the printing wheel 62 to revolve. The

same movement of the wheel 50 will cause the tooth (36 on the hell crank G'Z'to ride along the top of the teeth on the wheel 50, then reaching the position shown in Fig. 2. A further movement of the tripping wheel 16 will nose. the hook 20 of the tripping lever h to ride up on the portion 1.7. release the pin 23 from engagement with the pin 22 and. the. wheel 24 will spin around, causing the parts B, and the striking lever 35, to return tothe initial'position shown in Fig. l. At the same time, the Wheels 43 and 1 will remain in engagement and the printing roller will continue to revolve. As soon as the tooth 20 enters the first one of the notches 18, the. pin 22 will be thrown out of engagement with the pin 23, and the wheel 24- will revolve through another half revolution, causing the hannner 37 to strike the plunger 3.), and this will turn the wheel 52 through another cog, causing the tooth (3G to snap into engagement with a. notch of the wheel fit), and the. spring (5!) will throw the hammer (37 against the. tape (S8 and press the same. against the. carbon 76 and will print the corrospomling number ol the. printing wheel on to the tape, and will hold the printing wheel llz 'l asl, preventing it from revolving. The. same. movement will throw the This will friction Wheels 43 and 61 out of engagement,

the parts then assuming the positions shown in Fig. As the wheel 16 continues to revolve, the catch 20 will bepressed upward. by the next tooth releasing the wheel 24:, and returning the lev r 35 to the initial position shown in Fig. 1, while the tooth on the arm will snap into engagement with one of the notches on the wheel 50, as shown in Fig. 4:, and the catch 57 will bear eccentrically against the heart-shaped cam, as shown in dotted lines in Fig. 7, or in full lines in Fig. l. This will cause the spring 56 to push the cam and with it the wheel. 62, around until the point 5? snaps into the notch 58 of the heart shaped cam 59, 'whicl'i position corresponds to the Zero position oi the printing wheel 62. This will restore the printing wheel to the Zero position and the cycle of operation complete. The last described movement of the bell crank 6; will drive the ratchet 73 slightly moving the type writer ribbon Y6, as will be obvious from inspection of Figs. 1 and The movement of this bell crank 68 will also drive the plunger and the friction wheels and 87 which feed the through the apparatus, and promptly bring the reading just printed into view.

In order to provide for reading the indi cations on. the wheel visually while the tape is being printed, the peep hole '90 may be provided. in the cas and an index 91min be provided opposite the tape, as shown in Fig. 1, and two sets of grad nations maybe provided on the wheel, as indicated in Fig. 9, the one to print the record on the tape, the other to indi .ate the corresponding number that being printed by the tape. For instance, if the inder 91 be 180 from the tape 68, and the mach no be set at zero, as is automatically accomplished by the mechanism already described, the right hand disk, shown in Fig. 9, would Show visually the number of graduations through which the wheel 62 has been turned, while the corresponding number would be printed on the tape on the opposite side of the wheel from the graduations on the left side of the periphery oi. the wheel 62*.

It will be seen that the apparatus pro vides a timing mechanism driven at a regular speed, a striking mechanism controlled by said timing mechanism, a rotary scale, and means operated by the striking mechanism for intermittently causing said scale to rotate at a speed depending on the speed that is being measured; means for auto1natically returning said scale to the zero position, and means for printing the indicia on said scale on the moving tape, means for moving said tape, and also a printing ribbon, and means for moving the same, all actuated or controlled by the timing mechanism. All of these parts maybe mounted it IlQlV in a small case located at any convenient point.

The printing wheel 62 or 62 as has been stated, is driven by the movement of the object whosespeed it is desired to measure. It the moving object moves steadily, as for example, a marine engine, direct connection between the wheel E, and the moving object is desirable. If it is intermittent, as for example, the strokes of a pump, a ratchet connection may be user. ll it is desiredto measure speeds, when ri on in reverse direction, special gearing must he installed so that the wheel is!) itnay always be (flriven in the same direction. Further, the motion oi the wheel 62 must be so geared down, that at the highest speed it is intended to record, the printing wheel 62 will not make more than one complete revolution during the interval between the time the tripping lever falls into the last notch before the blank space, and the time it falls into the first notch after the blank space. having three notches, the last notch be't'ore the blank space, engaging the catch 20 causes the scale to rotate, and this rotation continues until the catch engages in the first notch alter the blank space; then the scale is stopped and the distance the scale has traveled dur ing this interval. is stamped on the tape. When the book 20 snaps into the second notch uftcrthc blank space, the scale is automatically restored to the zero point, and the tape moved to show the stamped reading. This completes the cycle, and further motion of the catch to the third notch begins ries 01 operations.

In the instrument is some distance removed from. the moving object whose speed it is designed to measure, the motion may be transmitted to the wheel E by suitable shafts and gearing or by the use of flexible shafting, such as employed to drive dentists tools.

To measure the speed of moving vehicles,

such as wagons, railway or tram cars, automobiles, etc., the wheel E may be driven by one of the wheels upon which the car travels, and the scale on the printing wheel, may he graduated in the desired terms (say miles per hour) according to the linear circumferonce of the wheel engaged. This instrument is of particular use in measuring and recording the speed of marine engines of steam ships and men of war. The instrument may be located on the bridge, in the conning tower or at any-other desired position, with the Wheel E driven by the main shaft of the engine. The speed of the engine then is recorded and constantly rangements of parts which could be used Without departing from the spirit of my in- 'vention.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the Uni ted States is:

1. An apparatus of the character de scribed, comprising a. train of gearing aranged to run at uniform speed,- striking mechanism intermittently controlled thereby, said mechanism including a pivoted striking arm and a hammer carried thereby, a rotary scale, means driven by the part whose speed is to be measured, for rotating said scale,'and means operated by said striking mechanism for throwing said scale rotating means into and out of operation on the forward stroke of the hammer, substantially as described,

2. An apparatus of the character described, comprising a train of gearing arranged to run at uniform speed, striking mechanism intermittently controlled thereby, said ,mechanism including a pivoted striking arm and a hammer carried thereby, a rotary scale, means, driven by the part whose speed is to be measured for rotating said scale, and means operated by said striking mechanism for throwing said scale rotating means into and out of operation, which means are also controlled .by said striking mechanism for restoring said scale to the initial position, substantially as described.

3. An apparatus of the character described, comprising a train of gearing arranged to run at uniform speed, striking mechanism intermittently controlled there by, said mechanism including a pivoted striking arm and a hammer carried thereby, a rotary scale, means, driven by the'part whose speed is to be measured, for rotating said scale, and means operated by said striking mechanism for throwing said scale rotating means into and out of operation, with means also controlled by said striking mechanism for indicating the movements of CfllCl scale, substantially as described.

, 4. .An apparatus of the character dcscribed, comprising a train of gearing ar ranged to run at uniform speed, striking mechanism intermittently controlled thereby, said mechanism including a pivoted striking arm and a hammer carried thereby, a rotary scale, means, driven by the part whose speed is to be measured, for rotating said scale, and means operated by said striking mechanism for thrmving said "scale rotating means into and out of operation, means also controlled by said striking mechanism for restoring said scale to the initial position, and means also controlled by said striking mechanism for indicating the movements (if said scale, substantially as described.

5. An apparatus of the character described, comprising a train of gearing arranged to run at uniform speed, striking l'llQClltlIllSlll intermittently controlled thereby, a rotary scale, means, driven by the part 7 whose speed is to be measured, for rotating said scale, means operated by said striking mechanism for throwing said scale rotating means into and out of operation, and means also contro led by said striking mechanism for restoring said scale to the initial position, comprising a heart shaped cam mounted on the shaft of said rotary disk, and a spring impressed arm bearing on said heartshaped cam, substantially as described. 8g

6. An apparatus of the character described, comprising a train. of gearing arranged to run at uniform speed, striking mechanism intermittently controlled thereby, the said striking mechanism comprising 55, a disk having a cylindrical surface provit with a group of three notches, a pivoted yoke having a hoe r at one end adapted to bear on said surface and to engage in said notches, and having its other end bifurcated, a piv i 4 otcd hammer, a spring impressed train of gearing for driving said hammer, a pin projecting from one member of said tram of gearing and adapted to engage alternately the two arms of the bifur'ated end of pivoted yoke; arotary scale, means driven by the part whose speed is to be measured,

' for rotating said scale, and means operated by said striking mechanism for throwing said scale rotating means into and out of operation, substantially as describcd. 7. An apparatus of the character described, comprising a train of gearing arranged to run at uniform speed, striking ,3 mechanism intermittently cont-rolled therep 1 by, the said striking mechanism comprising a disk having a cylindrical surface provided} with a group of three notches, a pivoted yokehaving a hook at one end adapted to beard on said surface and to engage in said notch f andhaving its other end bifurcated, a piv ij otcd hammer, a spring impressed train 0ft 3 gearing for driving said hammer, a pro-i 5 jccting from one member of said tram of gearing and adapted to engage alternately the two arms of the bifurcated end of said pivoted yoke; a, rotary scale, means, driven by the part Whose speed is to be measured for rotating said scale, and means operated by said striking mechanism for throwing said scale rotating means into and out, of operation, said means being also controlled by said striking mechanism for restoring said scale to the initial position, substanlially as described.

8. An apparatus of the character described, comprising a train of gearing arranged to run at uniform speed, striking mechanism intermittently controlled thereby, the said striking mechanism comprising ice a disk having a cylindrical surface provided with a group of three notches, a pivoted yoke having a hook at one end adapted to bear on said surface and to engage in said notches, and having its other end bifurcated, a pivoted hammer, a spring impressed train of gearing for driving said hammer, a pin projecting from one member of said train of gearing and adapted to engage alternately the two arms of the bifurcated end of said pivoted yoke; a rotary scale, means, driven by the part whose speed is to be measured, for rotating said scale, and means operated by said striking mechanisn'i for throwing said scale rotating means into and out of op eration, with means also controlled by said striking mechanism for indicating the movements of said scale, substantially as described.

9. An apparatus of the character described, comprising a train of gearing arranged to run at uniform speed, striking mechanism intermittently controlled thereby, the said striking mechanism comprising a disk having a cylindrical surface provided with a. group of three notches, a pivoted yoke having a hook at one end adapted to bear on said surface and to engage in said notches, and having its other end bifurcated, a pivoted hammer, a spring impressed train of gearing for driving said hammer, a pin projecting from one member of said train of gearing and adapted to engage alternately the two arms of the bifurcated end of said pivoted yoke; a rotary scale, means, driven by the part whose speed is to be measured, for rotating said scale, and means operated by said striking mechanism for throwing said scale rotating means into and out of operation, means also controlled by said striking mechanism for restoring said scale to the initial position, and means also controlled by said striking mechanism for indicating the movements of said scale, substantially as described.

10. An apparatus of the character described, comprising a train of gearing arranged to run at uniform speed, striking mechanism intermittently controlled thereby, the said striking mechanism comprising a disk having a cylindrical surface provided with a group of three notches, a pivoted yoke having a hook at one end adapted to bear on said surface and to engage in said notches, and having its other end bifurcated, a pivoted hammer, a spring impressed train of gearing for driving said hammer, a pin projecting from one member of said train of gearing and adapted to engage alternately the two arms of the bifurcated end of said pivoted yoke; a rotary scale, means, driven by the part whose speed is to be measured, for rotating said scale, means operated by said striking mechanism for throwing said scale rotating means into and out of operation, and means also controlled by said striking mechanism for restoring said scale to the initial position, comprising a heart shaped cam mounted on the shaft of said rotary disk, and a spring impressed arm bearing on said heart shaped cam, substantially as described.

In testimony whereof, I aflix my signature, in presence of two witnesses.

RICHARD DRACE YVHITE.

W'itnesses:

Josnrii S. HUNT, A. D. Wnmrns, Jr. 

